| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 May 2021 | 26 May 2021 | 001-38636 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2021 | 30 Apr 2021 | 001-38636 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Mar 2021 | 04 Mar 2021 | 001-38636 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2020 | 01 Jul 2020 | 001-38636 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2020 | 28 Feb 2020 | 001-38636 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Mar 2019 | 04 Mar 2019 | 001-38636 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Oct 2018 | 01 Oct 2018 | 001-38636 |